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I
must admit first that I am not a professional
web developer. My own site is practically
the first site that I have created and
am maintaining it too. When I published
CyberScout.Net all I had on the site
was about Hardware and Networking. In
a very short time I realised that there
can be much more that a web site can
offer and of course there can be many
things that the web master can get in
return such as the ads on the site.
I got interested and worked more on
it, the ads started to bring in some
extra $$$ too. But again soon I realised
that I need to keep the complete record
of the visitor. Why does a web master
need the user record? 1001 reasons for
that, once you start to get traffic
at your site, there is a lot to take
care of. You need to maintain the logs
because you have need to see the user
activity on your site. I first started
to use free utilities and services like
counters etc from web. Then I came to
know that it is not so hard to get this
stuff done by yourself without giving
the authority of maintaining your logs
to one third party. If you do it yourself,
you will have your privacy and secrecy
in your own hands. But for this you
need two things. One is that you should
have a little bit knowledge of PHP and
MySQL and the second is that your web
host should be able to support these
both things at least. Using PHP you
can either create the log files in html
format or you can make a database table
to keep your data on it. I have it in
database and am pretty much comfortable
with it. I am planning to write a small
tutorial for PHP and MySQL basics soon
too but right now assuming that you
have the minimum required knowledge
of PHP and MySQL, I would not go deeply
into the introductions and all that
stuff. In the next lines you will see
the predefined variables that you can
use to monitor your visitor’s
activities on your site. |
| PHP
Predefined Variables |
| 'PHP_SELF'
|
This
is the filename of the script
that is currently being executed
relative to the root directory.
For example, $_SERVER['PHP_SELF']
in a script from the web url http://cyberscout.net/example.php/
would be /example.php. |
| 'SERVER_ADDR'
|
Gets
the IP address of the server under
which the current script is executing.
|
| 'SERVER_NAME'
|
Gets
the name of the server host under
which the current script is being
executed. If the current script
is running over a virtual host,
this will get the value defined
for that virtual host. |
| ‘SERVER_SOFTWARE’
|
Gets
server identification string,
given in the headers when responding
to requests. |
| 'SERVER_PROTOCOL' |
Gets
the name and revision of the information
protocol via which the page was
requested. |
| 'REQUEST_METHOD'
|
To
get which request method was used
to access the page, for example
'GET', 'HEAD', 'POST' etc. |
| ‘REQUEST_TIME’
|
Gets
the timestamp of the start of
the request. |
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